Ice-making machine.



E. RUEGGER.

ICE MAKING MACHINE` APPLICATION FILED AUG24| I9I4. I f Patented June6,;1916,

X xInWuIl 11n-...I 0 J [Ill Wr/wifey :I I

UNITED STATES GESELLSCHAFT DER 'MSGHINENFABBIKN `WYSS & CO., 63 ZUBCH,

SWITZERLAND.'-

CE-MAKING' MACHINE.

To all, lwtom t may concer/1i:

Be it lrnown that EDUARD REGGER, a citizen of the Republic ofSwitzerland, residing at Zurich, Switzerland, have ine vented new anduseful improvements in lce-lilalring Machines; and I do hereby declarethe following to be a full, clear, and exact description or' theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying lrawing, and to letters or figures of reich ence markedthereon, which form a part of this specification.

This invention relates to an ice-melting machine adapted moreparticularly for a small output, the demand for which is of late everincreasing for use in large households, sanatoria, by doctors, etc. 2OAccording to the invention three vessels are made of such a form andfitted one Within the other in such a manner that the space left betweenthe innermost vessel containing the compressor and the intermedi- 25 atevessel 'is adapted to serve as a condenser', and the space left bet-Weenthe intermediate and the outer vessel to serve yas a jacket for thecooling water. The inner wall of the intermediate Vessel carries helicalribs or 3o* gills which looked at in section are inclined upward towardthe axis of-the casing` and which have perforations formed in them inproximity to the Wall of the intermediate casing tor the liquefiedrefrigerantto iloiv B5 through. M v

A further constructional feature of appaatus embodying the inventionconsists in the fact that helical ribs are also arranged between theouter and the intermediate vesio sel, the same being preferably formedon the outer surface or' the intermediate vessel.

A construction of ice-making machine ac.

cordino' to the invention is illustrated by wey or example in thcaccompanying drawi? ino', which is partly in section.

vind'cates a vertically arranged shaft that drives, through a crank 2, apiston 3 working` in the compressor 4.

The refrigerant (which may for instance e ethyl ehloridl is suckedthroughfi, pipe with the cnpressfwy ethrough )erts '7 nd 8 in thecompressor and cham er re ,spectivelv The ports '7, are formed each endof the compressor in a vertibel Specification of Letters Patent.

ppleation leci August 2e, 1914. Serial No. 658,324.

, are brought ini-.o register and the isisJ v sion on the lei't, boththis suction and f rounded by a vessel 1G of annular section,

intoa suction chamber G ivlncn connnrnn- .Tratented @Enne 6, 191er planesituated at one side of the 'longitudinal axis' of the compressor whilethe ports 8, 8, are formed in the top of the suction Chamber in avertical plane on the opposite side or the longitudinal axis of theChamb r. ce fhe compressor is' pivotally mounted on trunnio'ns 4a end isoscillated by the revolutions ofcranlr 2 so that ports 7 and 8 arealternately opened and closed. lflfhen the parts are in position shownin the drawings, c., the dead center of the crank, the ports at bothends are closed. @tiring the first quarter revolution, the pister to theright, oscillating the cyiinder compressor so that the ports 7 and 8 onf left gradually come into register while port Y on the right movesaivay from corresponding port S and botaL ports on right areconsequently closed. Surfing movement suction takes place 'through theieft hand ports 7 and S and the refrigerant, which was sucked in on theStroke of the piston to the left, is Compressed in the right hand end ofthe compressor cylinder end. orved out through the port controlled bythe vaive l0. During the next,'or .second quarter revolution, of thecrank 2 the ports 7 and 8 on the left are gradually chief-:d and thoseon the right brought into cl relation. During the third quarter otrevolutlonof the crank these operations reversed, 2. e., the ports i andon the i.'

mii creates a suction on the right and compr spression being completedduring,A the i` quarter of revolution the cor frig'crant being forcedout thi i of the valve 9. lt Vis immateriali f poses ot the inventionvsliethe e?. chamber G be arrz'inged above orbclovv compressor i.

The compression chamber is io the innermost vessel l2 and, the e Thevessel l2 arranged within e., s i what large vcsseili, the space l thesetwo vessels serving as With this object the vessel. i-'lsur- Silit?between which andthe vessel l-i annular cooling' Water space o Thecooling Water itself entei tom through b -aneh 1S an the ough branch iiii/*ith object of su fir/mnh casing l; llin a long;f he

,toni el' said nip tion'it iiili :1)5 lll.' r ,ini a 1 and or a width nscribed nay l'or iii-- icei copper Y) and cal itifular constiilffh is inorder :low tothat this have t@ 'the lon;T helilim -l els heat 1 lentcroig at Y the top liquefied thus preventing vany liability of suchportion to revaporate, say through taking up heat from the vaporiformportion of the refrigerant.

An ice-making' machine constructed according to the invention has greatadvantages compared with other types' of icemaling machines. The machineas a whole takes up very little space and nevertheless is most etlicientin its Working. The joint to be made between 'the cover 13 and thevessel 14 is of a simple kind and can be niade really Huid-tight so asto insure safety in working. Between the Vessel l2 and the cover 13 nofluid-tight joint is required at all. Special pipe-(':onnections betweenthe compression chamber 11 and the condensing;l chamber 15, requiring tobe made fluid tight at the joints, are entirely dispensed with. rlheoutermost vessel 1G can be readily slipped ott the intermediate 'vessel14 and thus enable the dirt deposited bythe Water to be cleared out ofthe cooling Water liacket 17.

As hereinbefore described the structural arrangement ot the gills 2Qinsures a constant precipitation or separation of the liquefied portionof tlle'refrigerant from that which is still in the state of vapor alongthe whole p-fth traversed by the rci`rigerant in the rondenser 15.

lt will be readily understood that the `uannels 26 might alternativelybe formed in the outermost casing 16. The strip 22 constituting thegills may, as already stated, be made of sheet copper and be soldered inthe grooves 21 in the intermediate casing ift and it may consist of morethan. one piece. r as alternative constructions it may be thickenedtoward the carrying Wall 14 and he made integral therewith, or it may becast into such Wall 14.

1Q An ice making machine, comprising an inner vessel coiistituting` acompression chamber, an outer vessel, a vessel interposed liet-Ween theinner and outer vessels and 't'orminar therewith an outer cooling chamher and anv inner condensing: chamber, a suction chamber, ay compressoradapted tol communicate with the suction chamber and compressionchamber, and a passage connecting the latter with the condensingcha1nber.

2. An ice making machine, comprising an inner vessel constituting acompression chamber7 an outer vessel, a vessel interposed between theinner and outer vessels and forming therewith an outer cooling chamberand an inner condensing chamber, a suction chamber in the compressionchamber, a coinpressor in the latter adapted to communicate therewithand with the suction chamen chamber Withthe condenser chamber.

Athe latter with the chamber,

3. An ice making machine, comprising an inner vessel constituting acompression chamber, an outer vessel, a vessel interposed between theinner and outer vessels and forming therewith an outer cooling chamberand an inner condensing chamber, heli! cal ribs in the condensingchamber, a suction chamber, a compressor adapted to communicate with thesuction chamber and compression chamber, and a passage connecting thelatter with the condensing chamber.

4; An ice making machine, comprising an inner vessel constituting acompression chamber, an outer vessel, a vessel interposed between vtheinner and outer vessels and forming therewith an outer cooling chamberand an inner condensing chamber, helical ribs in the condensing chamberinclined upwardly toward the yaxis thereof, a suction V chamber, acompressor adapted to communicatewith the'suction chamber andcompression chamber, and a passage connecting condensing chamber.

5. An ic'e making machine, comprising an inner vessel constituting acompression an outer vessel, a vessel interposed Y, between the`innerand outer vessels and forming therewith an outer cooling-chain berand an vinner condensing chamber, helical ribs in the condensing chamberinclined upwardly toward the axis thereonsaid ribs having perforationsin proximity to the wall of the interposed vessel, `a suction chamber, acompressor adapted to communicate with the suction chamber andcompression chamber, and passage connecting the latter with thecondensing chamber.

6. An ice making machine,

comprising an lnnerve'ssel constituting a compression chamber, an outervessel, an intermediatev vessel between the inner and outer vesselsforming a cooling chamber between the inner wall of the outer vessel andthe outer wall of the intermediate vessel and forming a condensingchamber betweenthe outer wall of the inner vessel and the inner wall ofthe intermediate vessel, helical ribs on the inner wall of theintermediate vessel inclined upwardly toward the axis of the latter, asuction chamber in the compression chamber, a compressor in the latteradapted to communicate therewith and with the sucinnermost v,axis of thevessel tion chamber, and a passage connecting the compression chamberwith the condenser chamber.

7. An Aice making machine, comprising an inner vessel vconstituting acompression chamber, an outer vessel, an intermediate vessel between theinner and outer vessels torminga cooling chamber between the inner wallof the outer vessel and the outer wall of the intermediate vessel andforming a condensing chamber between the outer wall of the inner vesseland the inner wall of the intermediate vessel, helical ribs on the innerwall of the intermediate vessel inclined upwardly toward the axis of thelatter, said ribs having perforations in proximity to the inner wall ofthe intermediate chamber, a suction chamber in the compression chamber,a compressor in the latter adapted to communicate therewith and with thesuction chamber, and a passage connecting the compression chamber withthe condenser chamber.

8. An ice making machine adapted more a manner that the space leftbetween the vessel containing thecompressor andthe intermediate vesselis adapted to serve. as a condenser and the space left between theintermediate vessel'and the outer vessel to serve asa cooling Waterjacket, a suction chamberformed within the innermost vessel, a cover, acompression chamber formed by the innermost vessel and the cover andcommunicating with the condenser, helical, ribs provided on the insidewall of the intermediate vessel and being when looked at in section,inclined upward toward the and having in proximity to the wall of theintermediate vessel perforations for the liquefied refrigerant to flowthrough and helical ribs arranged on the' outer wall of the intermediatevessel.

In testimony that Inclaim the foregoing as my invention, I have signedmy name in presence of two subscribing witnesses. EDUARD RUEGGER.Witnesses:

ERNST Frscimu, CARL GUBLER.

